The PFA / FEP Lined Ball Valve is the definitive solution for handling the world’s most corrosive and ultra-pure fluids. Designed specifically for the chemical, pharmaceutical, and semi-conductor industries, these valves feature a robust metal body—typically Ductile Iron or Stainless Steel—internally lined with a thick, uniform layer of Fluoropolymer.
Whether you are managing strong acids, alkalis, or high-purity solvents, the PFA (Perfluoroalkoxy) or FEP (Fluorinated Ethylene Propylene) lining provides a chemically inert barrier that prevents the process media from ever coming into contact with the metallic housing, ensuring zero corrosion and zero contamination.
Lined Options: PFA vs. FEP:-
Choosing the right lining material is critical for the longevity of your piping system:
- PFA Lined (Premium): Offers superior thermal stability and higher mechanical strength. It is ideal for high-temperature applications (up to 200°C) and is more resistant to permeation by aggressive chemicals.
- FEP Lined (Economical): Excellent for general corrosive service at lower temperatures (up to 150°C). It provides a smooth, non-stick surface with exceptional chemical resistance at a more cost-effective price point.
Key Features & Benefits:-
- Universal Chemical Resistance: Virtually unaffected by most known chemicals, including sulfuric acid, hydrochloric acid, and chlorine, making it the safest choice for hazardous media.
- Dovetail Groove Locking: The lining is mechanically locked into the body and ball using a "dovetail" groove system. This prevents the liner from collapsing or shifting under high-vacuum or high-pressure conditions.
- Bubble-Tight Sealing: Equipped with precision-machined PTFE seats that provide a 100% leak-proof shut-off in both flow directions.
- Full Bore Design: Ensures an unobstructed flow path with minimal pressure drop, preventing the buildup of solids or slurries.
- ISO 5211 Mounting Pad: Features a standardized top flange for easy automation with Pneumatic or Electric Actuators, enabling seamless integration into automated chemical plants.
- Ultra-Pure Performance: The non-leaching properties of PFA/FEP make these valves ideal for "clean-room" processes where metal ion contamination must be avoided.
